Thermally disappearing resin particle

Abstract

The present invention is a directed to a method of producing a thermally decomposing resin particle, which comprises polymerizing a polyoxyalkylene macromonomer having a functional group alone or in combination with another polymerizable monomer in a solvent.

1 - 34 . (canceled) 
     
     
         35 . A method of producing a thermally decomposing resin particle,
 which comprises polymerizing a polyoxyalkylene macromonomer having a functional group alone or in combination with another polymerizable monomer in a solvent.   
     
     
         36 . The method of producing a thermally decomposing resin particle according to  claim 35 ,
 which comprises the step of carrying out suspension polymerization, emulsion polymerization, dispersion polymerization, soap-free polymerization, or mini-emulsion polymerization in combination with a hollowing agent.   
     
     
         37 . The method of producing a thermally decomposing resin particle according to  claim 36 ,
 which comprises the step of carrying out suspension polymerization in combination with the hollowing agent.   
     
     
         38 . The method of producing a thermally decomposing resin particle according to  claim 36 ,
 wherein the hollowing agent is an organic solvent having a boiling point in a range from −50 to 200° C.   
     
     
         39 . The method of producing a thermally decomposing resin particle according to  claim 36 ,
 which comprises the step of producing an emulsion containing a water-containing the hollowing agent enclosed in the polyoxyalkylene macromonomer or a monomer mixture containing the polyoxyalkylene macromonomer and another polymerizable monomer; the step of dispersing the emulsion in water; and the step of polymerizing the polyoxyalkylene macromonomer or the monomer mixture.   
     
     
         40 . The method of producing a thermally decomposing resin particle according to  claim 37 ,
 wherein the hollowing agent is an organic solvent having a boiling point in a range from −50 to 200° C.   
     
     
         41 . The method of producing a thermally decomposing resin particle according to  claim 37 ,
 which comprises the step of producing an emulsion containing a water-containing the hollowing agent enclosed in the polyoxyalkylene macromonomer or a monomer mixture containing the polyoxyalkylene macromonomer and another polymerizable monomer; the step of dispersing the emulsion in water; and the step of polymerizing the polyoxyalkylene macromonomer or the monomer mixture.   
     
     
         42 . The method of producing a thermally decomposing resin particle according to  claim 38 ,
 which comprises the step of producing an emulsion containing a water-containing the hollowing agent enclosed in the polyoxyalkylene macromonomer or a monomer mixture containing the polyoxyalkylene macromonomer and another polymerizable monomer; the step of dispersing the emulsion in water; and the step of polymerizing the polyoxyalkylene macromonomer or the monomer mixture.